Straddle carrier with power steering

US7311172B2 · kind B2 · utility

Assignee

• Noell Mobile Systems & Cranes GmbH · DE

Inventors

• Rolf Kuhn · Ingelheim am Rhein, DE
• Reinhard Bauer · Roßtal, DE

Key dates

• Filing date: Feb 28, 2005
• Grant date: Dec 25, 2007
• Expiry date: Feb 28, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D5/091
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A steering system for a straddle carrier includes two side supports with steerable wheels, braces, a hoisting gear, an an upper frame. An operator's cab having a steering wheel is disposed at the upper frame. A servo motor with an inverter is mounted in operative connection with the steering wheel and that operates in four quadrants. The servo motor steers the wheels of the straddle carrier using a steering computer, hydraulic proportional valves, control cylinders, and potentiometers on the side supports.